Text this: Bound excitons in low dimensional halide perovskites

   _____     ___      _  _    _    _    ______   
  / ___//   / _ \\   | \| || | || | || |      \\ 
  \___ \\  / //\ \\  |  ' || | || | || |  --  // 
  /    // |  ___  || | .  || | \\_/ || |  --  \\ 
 /____//  |_||  |_|| |_|\_||  \____//  |______// 
`-----`   `-`   `-`  `-` -`    `---`   `------`